It was very informative discussion about HD YOZURI FC: http://www.deepocean.net/deepo...visibility/water.gifwhere Walt has shown the graphic of colors absorption in the water.IMHO YOZURI HD "pink" fluorocarbon has color much more close to magenta that located in the left part of graph. So it visible deep in the water like blue or green. Is somebody has measured real refraction of that line?